87480773 has 2 divisors, whose sum is σ = 87480774. Its totient is φ = 87480772.

The previous prime is 87480727. The next prime is 87480781. The reversal of 87480773 is 37708478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86081284 + 1399489 = 9278^2 + 1183^2 .

It is a cyclic number.

It is not a de Polignac number, because 87480773 - 2¹⁴ = 87464389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87480373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43740386 + 43740387.

It is an arithmetic number, because the mean of its divisors is an integer number (43740387).

Almost surely, 2^87480773 is an apocalyptic number.

It is an amenable number.

87480773 is a deficient number, since it is larger than the sum of its proper divisors (1).

87480773 is an equidigital number, since it uses as much as digits as its factorization.

87480773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 263424, while the sum is 44.

The square root of 87480773 is about 9353.1156840916. The cubic root of 87480773 is about 443.9194809078.

The spelling of 87480773 in words is "eighty-seven million, four hundred eighty thousand, seven hundred seventy-three".